diff --git a/src/vs/workbench/contrib/remote/browser/tunnelView.ts b/src/vs/workbench/contrib/remote/browser/tunnelView.ts
index 2289a2ece04..be89affe5e2 100644
--- a/src/vs/workbench/contrib/remote/browser/tunnelView.ts
+++ b/src/vs/workbench/contrib/remote/browser/tunnelView.ts
@@ -1465,7 +1465,7 @@ namespace ChangeLocalPortAction {
 
 	function validateInput(tunnelService: ITunnelService, value: string, canElevate: boolean): { content: string; severity: Severity } | null {
 		if (!value.match(/^[0-9]+$/)) {
-			return { content: invalidPortString, severity: Severity.Error };
+			return { content: nls.localize('remote.tunnelsView.portShouldBeNumber', "Local port should be a number."), severity: Severity.Error };
 		} else if (Number(value) >= maxPortNumber) {
 			return { content: invalidPortNumberString, severity: Severity.Error };
 		} else if (canElevate && tunnelService.isPortPrivileged(Number(value))) {